This page showed the reasons why Impulse was always the last one to YJ meetings. It was mainly because of his 'detour' to Africa, getting directions back from a monkey, ending up asking for further directions from Nightwing, and 'saving' Billy Batson (Aka Captain Marvel) from a lightning strike.

Later on in the same comic, Robin and Impulse and trying to stop a nuclear disaster. With the launch set to go off in 1.33 minutes, and Impulse having to go through trillions of combinations (the code has 5 numbers, then 3 letters, then 2 numbers), Robin is (understandably) freaking out. Impulse, however, states that "it took me a lot less than that to crack Zelda". I just love Impule's attempts to 'confuse' the computer here.